content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package io.reactivex.observable.internal.operators;
  
  import static org.mockito.ArgumentMatchers.isA;
  import static org.mockito.Mockito.*;
  
  import org.junit.*;
  import org.mockito.InOrder;
  
  import io.reactivex.common.TestCommonHelper;
  import io.reactivex.common.exceptions.TestException;
  import io.reactivex.common.functions.BiPredicate;
  import io.reactivex.observable.*;
  import io.reactivex.observable.observers.TestObserver;
  import io.reactivex.observable.subjects.PublishSubject;
  
  public class ObservableSequenceEqualTest {
  
      @Test
      public void test1Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.just("one", "two", "three")).toObservable();
          verifyResult(o, true);
      }
  
      @Test
      public void test2Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.just("one", "two", "three", "four")).toObservable();
          verifyResult(o, false);
      }
  
      @Test
      public void test3Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three", "four"),
                  Observable.just("one", "two", "three")).toObservable();
          verifyResult(o, false);
      }
  
      @Test
      public void testWithError1Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException())),
                  Observable.just("one", "two", "three")).toObservable();
          verifyError(o);
      }
  
      @Test
      public void testWithError2Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException()))).toObservable();
          verifyError(o);
      }
  
      @Test
      public void testWithError3Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException())),
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException()))).toObservable();
          verifyError(o);
      }
  
      @Test
      public void testWithEmpty1Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.<String> empty(),
                  Observable.just("one", "two", "three")).toObservable();
          verifyResult(o, false);
      }
  
      @Test
      public void testWithEmpty2Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.<String> empty()).toObservable();
          verifyResult(o, false);
      }
  
      @Test
      public void testWithEmpty3Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.<String> empty(), Observable.<String> empty()).toObservable();
          verifyResult(o, true);
      }
  
      @Test
      @Ignore("Null values not allowed")
      public void testWithNull1Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just((String) null), Observable.just("one")).toObservable();
          verifyResult(o, false);
      }
  
      @Test
      @Ignore("Null values not allowed")
      public void testWithNull2Observable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just((String) null), Observable.just((String) null)).toObservable();
          verifyResult(o, true);
      }
  
      @Test
      public void testWithEqualityErrorObservable() {
          Observable<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one"), Observable.just("one"),
                  new BiPredicate<String, String>() {
                      @Override
                      public boolean test(String t1, String t2) {
                          throw new TestException();
                      }
                  }).toObservable();
          verifyError(o);
      }
  
      private void verifyResult(Single<Boolean> o, boolean result) {
          SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
  
          o.subscribe(observer);
  
          InOrder inOrder = inOrder(observer);
          inOrder.verify(observer, times(1)).onSuccess(result);
          inOrder.verifyNoMoreInteractions();
      }
  
      private void verifyError(Observable<Boolean> observable) {
          Observer<Boolean> observer = TestHelper.mockObserver();
          observable.subscribe(observer);
  
          InOrder inOrder = inOrder(observer);
          inOrder.verify(observer, times(1)).onError(isA(TestException.class));
          inOrder.verifyNoMoreInteractions();
      }
  
      private void verifyError(Single<Boolean> observable) {
          SingleObserver<Boolean> observer = TestHelper.mockSingleObserver();
          observable.subscribe(observer);
  
          InOrder inOrder = inOrder(observer);
          inOrder.verify(observer, times(1)).onError(isA(TestException.class));
          inOrder.verifyNoMoreInteractions();
      }
  
      @Test
      public void prefetchObservable() {
          Observable.sequenceEqual(Observable.range(1, 20), Observable.range(1, 20), 2)
          .toObservable()
          .test()
          .assertResult(true);
      }
  
      @Test
      public void disposedObservable() {
          TestHelper.checkDisposed(Observable.sequenceEqual(Observable.just(1), Observable.just(2)).toObservable());
      }
  
      @Test
      public void test1() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.just("one", "two", "three"));
          verifyResult(o, true);
      }
  
      @Test
      public void test2() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.just("one", "two", "three", "four"));
          verifyResult(o, false);
      }
  
      @Test
      public void test3() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three", "four"),
                  Observable.just("one", "two", "three"));
          verifyResult(o, false);
      }
  
      @Test
      public void testWithError1() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException())),
                  Observable.just("one", "two", "three"));
          verifyError(o);
      }
  
      @Test
      public void testWithError2() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException())));
          verifyError(o);
      }
  
      @Test
      public void testWithError3() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException())),
                  Observable.concat(Observable.just("one"),
                          Observable.<String> error(new TestException())));
          verifyError(o);
      }
  
      @Test
      public void testWithEmpty1() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.<String> empty(),
                  Observable.just("one", "two", "three"));
          verifyResult(o, false);
      }
  
      @Test
      public void testWithEmpty2() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one", "two", "three"),
                  Observable.<String> empty());
          verifyResult(o, false);
      }
  
      @Test
      public void testWithEmpty3() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.<String> empty(), Observable.<String> empty());
          verifyResult(o, true);
      }
  
      @Test
      @Ignore("Null values not allowed")
      public void testWithNull1() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just((String) null), Observable.just("one"));
          verifyResult(o, false);
      }
  
      @Test
      @Ignore("Null values not allowed")
      public void testWithNull2() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just((String) null), Observable.just((String) null));
          verifyResult(o, true);
      }
  
      @Test
      public void testWithEqualityError() {
          Single<Boolean> o = Observable.sequenceEqual(
                  Observable.just("one"), Observable.just("one"),
                  new BiPredicate<String, String>() {
                      @Override
                      public boolean test(String t1, String t2) {
                          throw new TestException();
                      }
                  });
          verifyError(o);
      }
  
      private void verifyResult(Observable<Boolean> o, boolean result) {
          Observer<Boolean> observer = TestHelper.mockObserver();
  
          o.subscribe(observer);
  
          InOrder inOrder = inOrder(observer);
          inOrder.verify(observer, times(1)).onNext(result);
          inOrder.verify(observer).onComplete();
          inOrder.verifyNoMoreInteractions();
      }
  
      @Test
      public void prefetch() {
          Observable.sequenceEqual(Observable.range(1, 20), Observable.range(1, 20), 2)
          .test()
          .assertResult(true);
      }
  
      @Test
      public void disposed() {
          TestHelper.checkDisposed(Observable.sequenceEqual(Observable.just(1), Observable.just(2)));
      }
  
      @Test
      public void simpleInequal() {
          Observable.sequenceEqual(Observable.just(1), Observable.just(2))
          .test()
          .assertResult(false);
      }
  
      @Test
      public void simpleInequalObservable() {
          Observable.sequenceEqual(Observable.just(1), Observable.just(2))
          .toObservable()
          .test()
          .assertResult(false);
      }
  
      @Test
      public void onNextCancelRace() {
          for (int i = 0; i < 500; i++) {
              final PublishSubject<Integer> ps = PublishSubject.create();
  
              final TestObserver<Boolean> to = Observable.sequenceEqual(Observable.never(), ps).test();
  
              Runnable r1 = new Runnable() {
                  @Override
                  public void run() {
                      to.cancel();
                  }
              };
  
              Runnable r2 = new Runnable() {
                  @Override
                  public void run() {
                      ps.onNext(1);
                  }
              };
  
              TestCommonHelper.race(r1, r2);
  
              to.assertEmpty();
          }
      }
  
      @Test
      public void onNextCancelRaceObservable() {
          for (int i = 0; i < 500; i++) {
              final PublishSubject<Integer> ps = PublishSubject.create();
  
              final TestObserver<Boolean> to = Observable.sequenceEqual(Observable.never(), ps).toObservable().test();
  
              Runnable r1 = new Runnable() {
                  @Override
                  public void run() {
                      to.cancel();
                  }
              };
  
              Runnable r2 = new Runnable() {
                  @Override
                  public void run() {
                      ps.onNext(1);
                  }
              };
  
              TestCommonHelper.race(r1, r2);
  
              to.assertEmpty();
          }
      }
  }
  